FILE - In this Jan. 8, 2016, file photo, Mexican drug lord Joaquin "El Chapo" Guzman is made to face the press as he is escorted to a helicopter in handcuffs by Mexican soldiers and marines at a federal hangar in Mexico City, Mexico. The son of the imprisoned drug lord may be among the half-dozen men abducted by gunmen at a restaurant in the Mexican beach resort of Puerto Vallarta, authorities said Tuesday, Aug 16, 2016. (AP Photo/Marco Ugarte, File)